Similarly as in first study (section V.B), each user was equipped with assistive technologies she/he uses on her/his daily bases, like white cane or dog.
The user was using standard Nokia N70 mobile phone with navigation application.
We were logging same three types of data for usability analysis, log file generated by the mobile navigation application, video camera recording, audio recording.
We omitted fourth type of data from previous test, the handwritten annotations of observers.